1. Through-beam object interruption detection
The through-beam sensing design supports contact-free detection in compact machinery.
Align the emitter and receiver across a 500 mm gap and confirm reliable interruption with the actual object.
USD 60.71
Omron E3T-FT12 2M is an ultrathin through-beam photoelectric sensor with NPN Dark-ON output, a 650 nm red LED, and a 2 m cable.
The Omron E3T-FT12 2M is an ultrathin through-beam photoelectric sensor with a built-in amplifier, M2 mounting and a 2 m pre-wired cable. Its 650 nm red LED has a 500 mm sensing distance and detects opaque objects at least 1.3 mm in diameter. This version has a NPN open-collector Dark-ON output, 1 ms maximum operate/reset response, 12 to 24 VDC supply and IEC IP67 protection. Omron lists the exact model as selling and standard-stock; the inventory marker on the checked listing is - (inventory availability unknown; marker meaning not resolved).
A compact through-beam photoelectric sensor with NPN Dark-ON output for industrial object detection.
Through-Beam detection with NPN Dark-ON switching and a compact 2 m wired sensor.
| Parameter | Value |
|---|---|
| Product type | Ultrathin through-beam photoelectric sensor with built-in amplifier |
| Sensing method | Through-Beam |
| Sensing distance | 500 mm |
| Standard sensing object | Opaque object, 1.3 mm diameter min. |
| Minimum sensing object | 1.3 mm min. diameter (opaque object) |
| Directional angle | Emitter: 3 to 25°; receiver: 3° min. |
| Current consumption | Emitter: 10 mA max.; receiver: 20 mA max. |
| Light source | Red LED, 650 nm |
| Supply voltage | 12 to 24 VDC ±10%; ripple 10% p-p max. |
| Control output | NPN open collector, 26.4 VDC max., 50 mA max. |
| Residual voltage | 1 V max. at load current below 10 mA; 2 V max. at 10 to 50 mA |
| Operation mode | Dark-ON |
| Protective circuits | Output short-circuit, output reverse-polarity and power-supply reverse-polarity protection |
| Response time | 1 ms max. (operate and reset) |
| Ambient illuminance | Incandescent lamp: 5,000 lx max.; sunlight: 10,000 lx max. |
| Protection rating | IEC 60529 IP67 |
| Operating temperature | -25 to +55°C, no icing or condensation |
| Operating humidity | 35 to 85%, no condensation |
| Connection | Pre-wired, 2 m cable |
| Indicators | Operation indicator (orange); stability indicator (green) |
| Mounting and accessories | M2 mounting; instruction manual, M2 × 8 set screws and nuts supplied |
| Housing material | Polybutylene terephthalate (PBT) |
| Lens and display material | Modified polyarylate |
| Physical Weight (kg) | 0.040 (approx., packaged). |
| Dimensions L x W x H (cm) | See the Omron E3T-FD/FT dimension drawing; no consolidated L × W × H value is stated in the ratings text. |
| Supply status | Active; Omron listed this exact model as selling and standard-stock on 2026-10-06. Inventory marker: - (inventory availability unknown; marker meaning not resolved). |
Engineering suggestions require suitability checks for your installation.
The through-beam sensing design supports contact-free detection in compact machinery.
Align the emitter and receiver across a 500 mm gap and confirm reliable interruption with the actual object.
The built-in amplifier and 1 ms response support discrete presence sensing in automated equipment.
Use a compatible 12 to 24 VDC input and follow Omron mounting and optical-axis alignment guidance.